Update requirements.txt

requirements.txt

@@ -1,10 +1,24 @@
-gradio==4.25.1
-pandas
-pypdf
-docx2txt
-evaluate
-langchain==0.1.0
-langchain-community==0.1.5
-sentence-transformers
-huggingface_hub
-groq
+# Document processing
+pypdf
+docx2txt
+pandas
+
+# Embeddings & Vector store
+sentence-transformers
+faiss-cpu
+
+# LangChain (compatible versions)
+langchain==0.3.0
+langchain-community==0.3.0
+langchain-huggingface==0.1.0
+
+# LLM API
+groq
+
+# Hugging Face
+huggingface_hub>=0.30
+
+# Evaluation (optional)
+evaluate
+nltk
+rouge-score